I think there is a possibility that priests knowing the temple was about to be captured, hid it somewhere. It probably will never be found.
Also possible that it ended up in in Ninevah or Babylobn and then was probably eventually captured by Alexander’s men or maybe destroyed for it’s precious metals soon after it was originally taken.
Yeah well, I’m not gonna open it. Too heavy, sitting here between all the .22’s and the ten kiloton nuke. But now it will all have to be lost in a regrettable boating accident.
I’ll just cut a notch in the boat so I remember where it is...